Feature:1. Waterproof Plate: The waterproof inspection deck plate can be used all the year around, and keep deck safety without loss of durability.2. High Quality Materials: The deck plate is manufactured by 316 marine grade stainless steel, excellent resistance to impact for long lifespan.3. High Performance: The boat deck cover could retain an attractive, clean finish with low maintenance for the discriminating yachtsman.4. Exquisite Appearance: The heavy duty lid is anti slip with mirror polished surface and strong design access, bring you more convenience.5. Easy to Install: The high grade inspection hatch comes with predrilled countersunk holes (screws not included) for convenient installation.Specification:Item Type: Deck PlateMaterial: 316 Stainless Steel Surface Treatment: Mirror PolishingOuter Diameter: Approx. 197mm or 7.8inInner Diameter: Approx. 157mm or 6inOuter Hole Center Distance: Approx. 92mm or 3.6inInner Hole Center Distance: Approx. 126mm or 5.0inAperture: Approx. 5.5mm or 0.2in.Package List:1 xDeck Plate